Krishna,
I tried using the VectorTools::project idea from step-25. However, my code
fails to compile, and I could not decipher the errors and do not know how to
fix this problem (have been stuck for a while).
The attached code tries to implement Step-52 (but for 1D), with homogenous
dirichelet BC at the left edge and homogenous Neumann BC at the right edge,
with an initial value of 4/5*x*(1 - x/5) (a simple quadratic function). I am
also attaching the CMakeLists.txt (adapted from Step-52 suitably).
I'd appreciate help (from you and others here on the forum) to solve this issue.
You really need to learn how to read error messages because this is really a
rather simple case. The error you get is this:
/home/bangerth/p/deal.II/1/install/examples/step-1/step-1.cc:362:26: error:
‘Step52::InitialValues’ is not a template
InitialValues<1>(1, time),
^~~~~~~~~~~~~
/home/bangerth/p/deal.II/1/install/examples/step-1/step-1.cc:362:50: error: no
matching function for call to ‘Step52::InitialValues::InitialValues(int,
time_t (&)(time_t*) throw ())’
InitialValues<1>(1, time),
^
So you already know exactly what the line in question may be. There aren't all
that many possibilities for what could be wrong. The issue in your case is
that the 'time' variable doesn't exist in the function where you have the code
in question. The obscurity of the actual error message comes from the fact
that there is a global time() function. But in the end, this is a case where
you could have found the solution yourself.
So just replace time->0 if you want the initial values and everything should
work.
Best
W.
--
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Wolfgang Bangerth email: bange...@colostate.edu
www: http://www.math.colostate.edu/~bangerth/
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